How to multiple two vectors to produce a vector of products?

I am sure I am missing something but...

I want to multiple two vectors... Say, a vector of molecular weights times an equal length vector of component molar flow rates to produce a vector of component mass flow rates.

If I simply multiply the two vectors in MCP3.1, I get a scalar which is the sum of the products (in the example above it would be the total mass flow for the stream).

But how do I generate a vector where each element is the product of a mwt times a molar flow?

[I did look at the vector operators and functions but none of them seemed to do it.]

TIA

--Doug